Has Steven Wahlen, MD received payments from drug or device companies?

Yes. Drug and device makers reported $1,969 in general payments to Steven Wahlen, MD across 11 transactions between 2019–2025. Most Open Payments records nationally are meals worth under $20; a reported payment is not evidence of wrongdoing.

Does a payment mean Steven Wahlen, MD did something wrong?

No. Federal law requires drug and device makers to report almost every transfer of value to a physician, including a $14 sandwich at a lunch presentation. Consulting fees, research funding and royalties to device inventors are ordinary, legal parts of medicine. This site reports what was disclosed; it makes no allegation.

Where does this information about Steven Wahlen, MD come from?

The U.S. Centers for Medicare & Medicaid Services. Payments come from Open Payments, published under the Physician Payments Sunshine Act. Billing and prescribing figures come from the Medicare Physician & Other Practitioners and Part D Prescriber public use files for 2024.

Steven Wahlen, MD

Radiation Oncology · Chico, CANPI 1457308769

Payments from drug & device makers

$1,969in general payments, 2019–2025

Across 11 payments — averaging $179.01 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.

Elekta, Inc.$1K
Boston Scientific$233
AstraZeneca$210
Zap Surgical Systems, Inc.$188
Progenics Pharmaceuticals, Inc.$118
Novocure Inc.$101
plus $69 from 1 others

What the payments were for

Travel & lodging$94848%
Food & beverage$1,02252%

Most of this is food and beverage — typically meals provided during product presentations at a clinic or hospital. Nationally that is the single largest category of reported payments by count.

General payments by program year

Who reported the general payments

Companies are grouped under their corporate parent — a single manufacturer often files under several CMS reporting entities. Research and ownership payments are counted separately and are not in this table.

Company	Payments	Total
Elekta, Inc.	2	$1,050
Boston Scientific	2	$233
AstraZeneca	2	$210
Zap Surgical Systems, Inc.	2	$188
Progenics Pharmaceuticals, Inc.	1	$118
Novocure Inc.	1	$101
Takeda Pharmaceuticals U.S.A., Inc.	1	$69

What the payments were tied to

Products named in the reported payments. Only payments of $100 or more are attributed here — the typical reported payment nationally is a meal worth about $16, and listing those product-by-product would be noise.

Unity$1,050
Versa HD$948
Mosaiq$948
Monaco$948
Icon$948
AXIOS$183
ZAP-X MV IMAGER$152
ZAP-X TREATMENT PLANNING SOFTWARE$152
GYROSCOPIC RADIOSURGERY$152
ZAP-X RADIOSURGERY SYSTEM$152
PYLARIFY$118
IMFINZI$111
Oncology$101

How this compares

$1,969 in reported general payments places this provider in the 70th percentile of 627 radiation oncology providers in California.

See all radiation oncology providers in California →

Medicare billing

Part B allowed, 2024

$273,454

Medicare patients

422

Services billed

2,985

What this is not: this is the amount Original Medicare Part B allowed for services this provider billed in 2024. It is not their income. It excludes Medicare Advantage — now more than half of all Medicare enrollment — along with Medicaid and all commercial insurance, and it is gross practice revenue before staff, rent, supplies and malpractice premiums. CMS also suppresses any figure covering ten or fewer patients, so low-volume providers appear smaller than they are.

Most prescribed under Part D

Drug	Claims	Cost to plans & patients
Dexamethasone	11	$325
Tamsulosin Hcl	22	$249

Paid to pharmacies, not to this prescriber.

Other radiation oncology in Chico

Loren Mellla Jolla$10M
Hyun KimDuarte$6M
Megan DalyOrange$4.5M
Percy LeeIrvine$2.4M
Felix FengSan Francisco$1.8M
Jeffrey WongDuarte$1.7M
Arta MonjazebSacramento$1.5M
Rakesh PatelLos Gatos$1.3M
Maximilian DiehnStanford$1.2M
Rizwan NuraniApple Valley$1.1M

See the full list for California →

Where these figures come from

Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
Billing: Medicare Physician & Other Practitioners, data year 2024. Original Medicare Part B only.
Identity: NPPES NPI Registry, July 2026.

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